For those not aware of it, leap seconds have been added to official timekeeping records to reflect changes in the Earth's angular rotation and a way of measuring time called UT1. While UT1 is valid, the world measures time using Coordinated Universal Time (UTC) used by BIPM.

Adding leap seconds to satisfy UT1 messes with UTC and reverses the polarity of the neutron flow far too often. We guess that this causes floods of quantum cats.

Where the decision applies to computing is that the Linux kernel can't handle leap seconds. In 2012, 2015 and 2016 leap seconds caused crashes. After more than a decade contemplating the implications the BIPM has decided that they're more trouble than they're worth.

Another reason is that Earth's rotation has changed and we may need to insert a negative leap second which could really mess things up. If people were super fast they could see the lottery numbers and buy a ticket before the negave leap second.